A very good and thoughtful question of concern...
I've removed quite a few crowns for various reasons. Generally, they tend to often essentially pop off literally, or are easily removed with a crown removing tool that looks like some forceps (essentially they look similar to pliers one may use around the house). If the tooth has had a root canal, you may not need numbing, will depend on the Dentist. If no root canal has been previously performed - I'd suggest you be numbed however.
I don't want to make this seem complex however, as it isn't at all. I feel, from reading your thread above that you deem it to possibly be possibly overwhelming, etc. Also, the "Informed Consent" from the Dental Office is doing what all informed consents do - write it up as legal as possible and sometimes accidentally scare you, while making the procedure seem difficult. I'm not saying your Dentist's informed Consent is wrong. But it does accidentally, make the mere thought of having a crown removed sound a bit like passing a kidney stone or something. In my years of Dentistry, I've never had a form for "Informed Consent" for a crown removal. And, I've never had any complications such as what one can read about from what you sent me in the informed Consent!
What would I do? Honestly, I'd not sweat this thing out! The chance that your Dentist will have a problem with your tooth's crown coming off - has got to be about 1 in 1,000 or more. I wanted to say 1 in 10,000, but definitely it is supremely rare. And, I've never actually heard of any real story of a crown removal problem!
Anyway, please feel free to write back if you have any further concerns, but I feel extremely confident that this will not be in any way a traumatic experience for you, as spoken from my personal experience at this Dentistry for 30 years. I wish you the best, ***** ***** this helps you Sir!!!